Italy - 7 new outbreaks of highly pathogenic avian influenza H5N8 in backyard birds, farms in Emilia-Romagna, Lombardia, Veneto (OIE, October 12, 2017)

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Highly pathogenic avian influenza, Italy

Information received on 12/10/2017 from Dr Silvio Borrello, Chief Veterinary Officer, Food Safety and Collegial Bodies for Health Protection, Minist?re de la Sant?, Department for Veterinary Public Health, Rome, Italy

Summary Report type Follow-up report No. 28 Date of start of the event 20/01/2017 Date of confirmation of the event 21/01/2017 Report date 12/10/2017 Date submitted to OIE 12/10/2017 Reason for notification Recurrence of a listed disease Date of previous occurrence 17/01/2015 Manifestation of disease Clinical disease Causal agent Highly pathogenic avian influenza virus Serotype H5N8 Nature of diagnosis Clinical, Laboratory (advanced) This event pertains to a defined zone within the country Related reports Immediate notification (23/01/2017) Follow-up report No. 1 (24/01/2017) Follow-up report No. 2 (26/01/2017) Follow-up report No. 3 (03/02/2017) Follow-up report No. 4 (08/02/2017) Follow-up report No. 5 (16/02/2017) Follow-up report No. 6 (17/02/2017) Follow-up report No. 7 (24/02/2017) Follow-up report No. 8 (01/03/2017) Follow-up report No. 9 (03/03/2017) Follow-up report No. 10 (17/03/2017) Follow-up report No. 11 (30/03/2017) Follow-up report No. 12 (03/04/2017) Follow-up report No. 13 (11/04/2017) Follow-up report No. 14 (13/04/2017) Follow-up report No. 15 (31/05/2017) Follow-up report No. 16 (21/07/2017) Follow-up report No. 17 (28/07/2017) Follow-up report No. 18 (31/07/2017) Follow-up report No. 19 (03/08/2017) Follow-up report No. 20 (07/08/2017) Follow-up report No. 21 (10/08/2017) Follow-up report No. 22 (19/08/2017) Follow-up report No. 23 (25/08/2017) Follow-up report No. 24 (31/08/2017) Follow-up report No. 25 (07/09/2017) Follow-up report No. 26 (15/09/2017) Follow-up report No. 27 (02/10/2017) Follow-up report No. 28 (12/10/2017)

New outbreaks (7)

Outbreak 1 (HPAI_FE_2017_42) Codigoro, FERRARA, EMILIA-ROMAGNA Date of start of the outbreak 05/10/2017 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Farm Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 742981 200000 1050 Affected population The positivity regards a layer farming.

Outbreak 2 (HPAI_VI_2017_43 ) Pojana Maggiore, VICENZA, VENETO Date of start of the outbreak 06/10/2017 Outbreak status Resolved (09/10/2017) Epidemiological unit Farm Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 12400 400 400 12000 0 Affected population The positivity regards a layer hen farm. Culling of 12,000 layers has been completed on 9 October 2017 and all 12,400 layer hens have been safely disposed of.

Outbreak 3 (HPAI_VI_2017_45 ) Pojana maggiore, VICENZA, VENETO Date of start of the outbreak 09/10/2017 Outbreak status Resolved (10/10/2017) Epidemiological unit Farm Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 70 20 20 50 0 Affected population The positivity regards a farm of ducks, broilers and turkeys (30 broilers, 20 ducks and 20 turkeys). Culling of 50 animals has been completed on 10 October 2017 (20 ducks, 30 broilers) and all 70 animals have been safely disposed of.

Outbreak 4 (HPAI_BG_2017_44 ) Grone, BERGAMO, LOMBARDIA Date of start of the outbreak 09/10/2017 Outbreak status Resolved (11/10/2017) Epidemiological unit Backyard Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 8 8 8 0 0 Affected population The positivity regards a backyard farm. On 11 October 2017 all 8 animals have been safely disposed of.

Outbreak 5 (HPAI_BS_2017_48 ) San Gervasio Bresciano, BRESCIA, LOMBARDIA Date of start of the outbreak 09/10/2017 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Farm Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 11326 3300 187 Affected population The positivity regards a farm of fattening turkeys.

Outbreak 6 (HPAI_PD_2017_47) V?, PADOVA, VENETO Date of start of the outbreak 11/10/2017 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Farm Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 9001 53 53 Affected population The positivity regards a farm of fattening turkeys.

Outbreak 7 (HPAI_BG_2017_46) Cisano Bergamasco, BERGAMO, LOMBARDIA Date of start of the outbreak 11/10/2017 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Farm Affected animals Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 400 1 1 Affected population The positivity regards a layer hen farm.

Summary of outbreaks Total outbreaks: 7 Total animals affected Species Susceptible Cases Deaths Killed and disposed of Slaughtered Birds 776186 203782 1719 12050 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Birds 26.25% 0.22% 0.84% ** *Removed from the susceptible population through death, destruction and/or slaughter **Not calculated because of missing information

Epidemiology Source of the outbreak(s) or origin of infection Unknown or inconclusive Epidemiological comments The National Reference Laboratory has sequenced HPAI subtype H5N8. A protection zone of 3 km and a surveillance zone of 10 km have been established.

Control measures Measures applied Movement control inside the country Screening Traceability Official disposal of carcasses, by-products and waste Stamping out Zoning Vaccination prohibited No treatment of affected animals Measures to be applied Disinfection

Diagnostic test results Laboratory name and type Species Test Test date Result Experimental Zooprophylactic Institute (IZSVe), Padova (National laboratory) Birds polymerase chain reaction (PCR) 06/10/2017 Positive Experimental Zooprophylactic Institute (IZSVe), Padova (National laboratory) Birds real-time PCR 11/10/2017 Positive

Future Reporting The event is continuing. Weekly follow-up reports will be submitted.

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